Author: British Columbia. Geological Survey BranchPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Geology of the Nelson Map Area, Southeastern British Columbia
Author: British Columbia. Geological Survey BranchPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Geology of the Midge Creek Area, Nelson Map Area, Southeastern British Columbia
Author: Geological Survey of CanadaPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Nelson Map-Area, East Half, British Columbia
Author: Nelson Map-area, West Half, British Columbia
Author: H. W. LittlePublisher:
ISBN:
Category : Geology
Languages : en
Pages : 205
Book Description
Nelson Map-area, British Columbia
Author: Harington Molesworth Anthony RicePublisher:
ISBN:
Category : Geology
Languages : en
Pages : 32
Book Description
Nelson Map-Area, East Hale, British Columbia
Author: Harington Molesworth Anthony RicePublisher:
ISBN:
Category : Geology
Languages : en
Pages : 86
Book Description
Nelson map-area, west half, British Columbia 82 F W 1/2
Author: The Geology of the Nelson and Adjoining Part of Salmo Map Areas, British Columbia
Author: Robert MulliganPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
"The "Rossland volcanic group" is subdivided into two volcanic formations, separated by a dominantly sedimentary formation of Jurassic age. These rocks were folded along north-south axes and subsequently faulted and bent into an arc around a protuberance of the Cretaceous(?) Nelson granodiorite batholith during or just prior to its intrusion. A quartz-diorite stock and tongues, partly sheared, antedate the batholithic stage. Metadiorite, a feldspar-hornblende gneiss with coarse pyroxene-hornblende border facies, was formed by assimilation or metasomatic reconstitution of chiefly volcanic rocks prior to the batholithic stage. Syenite intrudes it in places, in others a gradational contact shows evidence of metasomatic action. The syenite may be Tertiary. Porphyry, aplite, lamprophyre and diabase dykes cut the granodiorite and some veins. These and monzonite chonoliths may be Tertiary. Gold-quartz, and gold and silver bearing copperlead- zinc sulphide deposits occur in bedded rocks, metadiorite, and quartz diorite tongues." --
Geology of the Trail Map Area, Southeastern British Columbia
Author: British Columbia. Geological Survey BranchPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Metallogeny and Mineral Deposits of the Nelson-Rossland Map Area
Author: Trygve HöyPublisher:
ISBN:
Category : Science
Languages : en
Pages : 214
Book Description
The Jurassic Rossland Group in south-east British Columbia is a volcanic arc succession that contains a variety of deposits typical of volcanic arcs. This report focusses on deposits in the Group, particularly on those that have had recent exploration, and on the metallogeny of the Nelson-Rossland map area. The report first reviews the regional geology of the area and describes a number of type examples of mineral deposits in Rossland Group rocks & others in the area. These include carbonate-hosted deposits, volcanogenic massive sulphides, porphyry copper-gold deposits, skarns, and gold-quartz & polymetallic veins. The principal focus is on the deposits of the Rossland copper/gold mining camp, the second largest lode gold producing camp in the province. The regional geology around Rossland is summarized, the main deposit types are described, and a model for intrusive-related gold-sulphide veins is presented. Appendices include a table of mineral occurrences in the area, production data for the area's metallic deposits, a petrographic report, analyses of samples, reports on geochronological dating & isotope characterization, and fluid inclusion data.